image comparing

[jselvakumar26071988]

is it possible compare a image already stored with image taken from camera......im developing a app for burglary alarm....give me some ideas...or web cam is needed.....

[honest_success]

Retrive the image using FIle Connection API and then convert it to byte then compare it.

[raj_J2ME]

Hi,
You can do one thing, You have your One Image as stored..so off course you can calculate the width and height of the saved image.

Now come to another hand...you take pic through the camera..right..so you know that you must know the width and height of the taken pic..depends upon the resolution of the handsets...

then you can easily compare the both..
Hope this way can make clean rode...
Thnxs

[jselvakumar26071988]

i dont get u raj....

[Tiger79]

Retrive the image using FIle Connection API and then convert it to byte then compare it.

wouldnt a single different pixel already turn out to result in a negative result ? I mean wouldnt this method test that the two pics are exactly exaclty the same ? Guess that wouldnt work in this particular real-life case, he is talking about a burglary alarm.. So the cam will be making pics every once and a while and if he compares bytewise even a different lightning-setting (which happens continuesly in a room with a window for example) would set it off..